diff options
Diffstat (limited to 'yocto-poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py')
| -rw-r--r-- | yocto-poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/yocto-poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/yocto-poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py deleted file mode 100644 index fbd75b14a..000000000 --- a/yocto-poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py +++ /dev/null @@ -1,193 +0,0 @@ -#!/usr/bin/env python -# ex:ts=4:sw=4:sts=4:et -# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- -""" - class for handling configuration data files - - Reads a .conf file and obtains its metadata - -""" - -# Copyright (C) 2003, 2004 Chris Larson -# Copyright (C) 2003, 2004 Phil Blundell -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - -import errno -import re -import os -import bb.utils -from bb.parse import ParseError, resolve_file, ast, logger, handle - -__config_regexp__ = re.compile( r""" - ^ - (?P<exp>export\s*)? - (?P<var>[a-zA-Z0-9\-~_+.${}/]+?) - (\[(?P<flag>[a-zA-Z0-9\-_+.]+)\])? - - \s* ( - (?P<colon>:=) | - (?P<lazyques>\?\?=) | - (?P<ques>\?=) | - (?P<append>\+=) | - (?P<prepend>=\+) | - (?P<predot>=\.) | - (?P<postdot>\.=) | - = - ) \s* - - (?!'[^']*'[^']*'$) - (?!\"[^\"]*\"[^\"]*\"$) - (?P<apo>['\"]) - (?P<value>.*) - (?P=apo) - $ - """, re.X) -__include_regexp__ = re.compile( r"include\s+(.+)" ) -__require_regexp__ = re.compile( r"require\s+(.+)" ) -__export_regexp__ = re.compile( r"export\s+([a-zA-Z0-9\-_+.${}/]+)$" ) - -def init(data): - topdir = data.getVar('TOPDIR', False) - if not topdir: - data.setVar('TOPDIR', os.getcwd()) - - -def supports(fn, d): - return fn[-5:] == ".conf" - -def include(parentfn, fn, lineno, data, error_out): - """ - error_out: A string indicating the verb (e.g. "include", "inherit") to be - used in a ParseError that will be raised if the file to be included could - not be included. Specify False to avoid raising an error in this case. - """ - if parentfn == fn: # prevent infinite recursion - return None - - fn = data.expand(fn) - parentfn = data.expand(parentfn) - - if not os.path.isabs(fn): - dname = os.path.dirname(parentfn) - bbpath = "%s:%s" % (dname, data.getVar("BBPATH", True)) - abs_fn, attempts = bb.utils.which(bbpath, fn, history=True) - if abs_fn and bb.parse.check_dependency(data, abs_fn): - logger.warn("Duplicate inclusion for %s in %s" % (abs_fn, data.getVar('FILE', True))) - for af in attempts: - bb.parse.mark_dependency(data, af) - if abs_fn: - fn = abs_fn - elif bb.parse.check_dependency(data, fn): - logger.warn("Duplicate inclusion for %s in %s" % (fn, data.getVar('FILE', True))) - - try: - bb.parse.handle(fn, data, True) - except (IOError, OSError) as exc: - if exc.errno == errno.ENOENT: - if error_out: - raise ParseError("Could not %s file %s" % (error_out, fn), parentfn, lineno) - logger.debug(2, "CONF file '%s' not found", fn) - else: - if error_out: - raise ParseError("Could not %s file %s: %s" % (error_out, fn, exc.strerror), parentfn, lineno) - else: - raise ParseError("Error parsing %s: %s" % (fn, exc.strerror), parentfn, lineno) - -# We have an issue where a UI might want to enforce particular settings such as -# an empty DISTRO variable. If configuration files do something like assigning -# a weak default, it turns out to be very difficult to filter out these changes, -# particularly when the weak default might appear half way though parsing a chain -# of configuration files. We therefore let the UIs hook into configuration file -# parsing. This turns out to be a hard problem to solve any other way. -confFilters = [] - -def handle(fn, data, include): - init(data) - - if include == 0: - oldfile = None - else: - oldfile = data.getVar('FILE', False) - - abs_fn = resolve_file(fn, data) - f = open(abs_fn, 'r') - - if include: - bb.parse.mark_dependency(data, abs_fn) - - statements = ast.StatementGroup() - lineno = 0 - while True: - lineno = lineno + 1 - s = f.readline() - if not s: - break - w = s.strip() - # skip empty lines - if not w: - continue - s = s.rstrip() - while s[-1] == '\\': - s2 = f.readline().strip() - lineno = lineno + 1 - if (not s2 or s2 and s2[0] != "#") and s[0] == "#" : - bb.fatal("There is a confusing multiline, partially commented expression on line %s of file %s (%s).\nPlease clarify whether this is all a comment or should be parsed." % (lineno, fn, s)) - s = s[:-1] + s2 - # skip comments - if s[0] == '#': - continue - feeder(lineno, s, abs_fn, statements) - - # DONE WITH PARSING... time to evaluate - data.setVar('FILE', abs_fn) - statements.eval(data) - if oldfile: - data.setVar('FILE', oldfile) - - f.close() - - for f in confFilters: - f(fn, data) - - return data - -def feeder(lineno, s, fn, statements): - m = __config_regexp__.match(s) - if m: - groupd = m.groupdict() - ast.handleData(statements, fn, lineno, groupd) - return - - m = __include_regexp__.match(s) - if m: - ast.handleInclude(statements, fn, lineno, m, False) - return - - m = __require_regexp__.match(s) - if m: - ast.handleInclude(statements, fn, lineno, m, True) - return - - m = __export_regexp__.match(s) - if m: - ast.handleExport(statements, fn, lineno, m) - return - - raise ParseError("unparsed line: '%s'" % s, fn, lineno); - -# Add us to the handlers list -from bb.parse import handlers -handlers.append({'supports': supports, 'handle': handle, 'init': init}) -del handlers |
